Apparatus for preventing the racing of marine engines.



- PATBNTED MAY 19,190;

B. HOPE. I APPARATUS FOR PREVENTING THE RAGING OF-MAR-INEBNGINES.

APPLICATION FILED APR. 12, 1902.

Io' MODEL.

, m #Ww- Patented May 19,1903.

j A ENT. OFFI E.

EDWARD HOPE, OF CHRISTCHURCH, NEW ZEALAND.

APPARATUS FOR PREVENTING Tl IE RACING'OF MARINE ENGINES.

SPECIFICATION forming part of Letters Patent No. 728,576, dated May 19, 1903.

Application filed April 12, 1902.

1 scale.

The pendulum-rod 1 has a bob 2, adjustable upon the rod by the nut 3. The head 4 of the pendulum is'secured to the rod by the key 5 and has a hemispherical top 6. Parallel grooves 7 are cut in the periphery of this top 6, which is suspended on a hooked spindle 8, a hemispherical recess being provided in the top to receive the spherical end 9 of the spindle 8. The ridges formed by the grooves 7 mesh with the toothed wheel'lO, which is pivoted upon the bracket l1 and meshes with a pinion12, fixed upon the valvespindle 13." The valve 14 is operable by the spindle 13. v The yoke 15 is fixed to the pendulum-rod 1' and is circular in form, its center being coincident with the center of the recess for the spherical end 9. The sides of the yoke pass freely through their guides 16, which are made to swivel on stems 17, passing through supporting-beams 18'.

The hooked spindle 8 is square in cross-section where it passes through its bracket 19 and circular where it projects above thesaid bracket. A collar 20 is secured upon the spindle 8, and-the cam-,head21 of IaIGVGI' ZZ fits upon the said spindle beneath the'c'ollar. The lower face of the'jcam-head'2l and'thetop of the bracket 19 are made with a slope, as shown. The brackets 11 and 19 are fixed to the beam 19. and at its outer end carries a pin 24. Holes in the collar 20 and head 21 receive the pin 24. v I I The apparatus is so designed-that the rolling of a vessel will not rotate the wheels 10 and 12, which are operated only when the vessel pitches. The valve 14 is thus regulated or shut only when the vessel pitches.

The apparatus is fitted into a vessel with A lever 23 is pivoted upon the lever 22 Serial No. 102,663. No model.)

theplane of the yoke 15 athwartships, and

its operation is as follows: The pendulum v 14 is not operated by the rolling motion. The

guides 16 slide freely upon the sides of the yoke 15 when the vessel rolls and rotate on their stems 1 7 when the vessel pitches, freedom of movement in all directions being thus provided. The vertical position of the pendulum is not disturbed by the said guides; but the sides of the yoke passing through the guides 16 prevent the pendulum from rotating, and the ridges 7 are thereby kept at right angles to the plane of the wheel 10.

The lever 22is for the purpose of throwing the ridges 7 out of gear with the wheel 10 and is operated by depressing the lever 23 to withdraw the pin 24 from its hole 25. The lever 22 is then turned around until the collar 20, and with it the spindle 8, is lowered until the ridges 7 are out of gear. The lever 22 is then locked by allowing the pin 24 to on the periphery of the top gearing with a toothed wheelg'isubstantially as described.

2. In apparatus for preventing the racing of marine engines provided with a valve, a spindle having a spherical end, a penduluinhaving a hemispherical top the center of which iscoincident with the center of the spherical end of the spindle, parallelridges on the .periphery of the said top gearing with a toothed wheel, and a recess in'the pendulum-top to receive the said spherical end of the hooked spindle, substantially as set forth.

ed to recei'vethe spindle, and parallel ridges 3. In apparatus forpreventing the racing of marine engines provided with a valve in combination, a pendulum suspended by a recess inits top upon the spherical end of the hooked spindle, a yoke fixed to the pendulum the center of the said yoke being coincident with the said spherical end of the hooked spindle, guides for the sides of the yoke capable of pivoting on their stems, substantially as set forth.

4:. The combination in apparatus such as described herein provided with a valve, of a hooked spindle having a spherical end, a pendulum having a hemispherical top the center of which is coincidentwith the spherical end of the hooked spindle, parallel ridges on the periphery of the said top gearing with a toothed wheel, a recess in the pend ulnm-top to receive the said end of the hooked spindle, a yoke fixed to the pendulum the center of the said yoke being coincident with the said spherical end of the hooked spindle and guides for the sides of the yoke capable of pivoting on their stems, substantially as set forth.

5. In apparatus for preventing the racing of marine engines, a pendulum having a hemispherical top, parallel ridges on the periphery of the said top gearing with a toothed wheel, and means for throwing the said hemispherical top out of gear with the toothed wheel, substantially as set forth.

(3. In apparatus such as described herein, in combination, a spindle hooked at its lower end and having a spherical end, the other end having a part square in cross-section fitting into a bracket with a sloping top, and having its extremity circular in section, a collar fixed to the'end of this circular part of the hooked spindle, and a lever having a cam-shaped end fitting upon the spindle beneath the said collar substantially as set forth.

7. In apparatus suchas described herein, in combination, a spindle hooked at its lower end and having a spherical end the other end having a part square in cross-section fitting into a bracket and having its extremity circular in section, a collar fixed to the end of this circular part of the spindle, a lever having a cam-shaped end fitting upon the spindle beneath the said collar, a second lever pivoted upon the cam-lever, a pin upon the end of this second lever, and holes in the said collar and cam to receive the said pin, substantially as set forth.

8. In apparatus such as described herein, in combination, a spindle having a spherical end, a pendulum havinga hemispherical top the center of which is coincident with the center of the spherical end of the spindle, parallel ridges on the periphery of the said top gearing with a toothed wheel, a recess in the pendulum-top to receive the said spherical end of the spindle a pinion gearing with the toothed wheel, a screwed spindle upon which the pinion is fixed and a stop-valve operated by the screwed spindle, substantially as set forth.

9. The combination, in apparatus for preventing the racing of marine engines, of a hooked spindle having a spherical end, a pendulum having a hemispherical top the center of which is coincident with the spherical end of the spindle, parallel ridges on the periph: cry of the said top gearing with a toothed wheel, a recess in the pend ulum-top to receive the said end of the spindle, a yoke fixed to the pendulum the center of the said yoke being coincident with the said spherical end of the spindle, guides for the sides of the yoke capable of pivoting on their stems, a part of the hooked spindle square in cross-section fitting into a bracket and having its extremity circular in section, a collar fixed to the end of this circular part of the hooked spindle, and a lever having a cam-shaped end fitting upon the spindle beneath the said collar, substantiall as set forth.

10. The con'ibination, in apparatus for preventing the racing of marine engines, of a hooked spindle having a spherical end, a pendulum having a hemispherical top the center of which is coincident with the spherical end of the spindle, parallel ridges on the periphcry of the. said top gearing with a toothed wheel, a recess in the pendulum-top to receive the said end of the spindle, a yoke fixed to the pendulum the center of the said yoke being coincident with the said spherical end of the spindle, guides for the sides of the yoke capable of pivoting on their stems, a part of the hooked spindle square in cross-section fitting into a bracket and having its extremity circular in section, a collar fixed to the end of this circular part of the hooked spindle, a lever having a cam-shaped end fitting upon the spindle beneath the said collar, a pinion gearing with the said toothed wheel, a screwed spindle upon which the pinion is fixed and a stop-valve operated by the screwed spindle,-

substantially as set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

EDNVARD l-IOPE.

Witnesses:

A. II. I-IART, T. R. SMITH.

IIC 

